Dynex TV Keeps Saying Run Channel Auto Scan ( Solution)


If you own an old Dynex TV and it keeps prompting you to run a channel auto scan, this blog post will provide you with a comprehensive troubleshooting guide to resolve the issue. Whether you are using an antenna or HDMI input, we’ll cover the steps to ensure your Dynex TV operates smoothly and efficiently.

I. Understanding the Issue

Before we delve into the solutions, let’s first understand why your Dynex TV keeps asking for a channel auto-scan. This problem is common with digital TVs, including most Dynex models, where free channels need to be scanned before they become watchable. Unlike the analog TVs of the past, where channels would automatically appear with an antenna, digital TVs require an initial channel auto scan.

II. Troubleshooting with an Antenna

1. Check Antenna Connection

Ensure that the antenna cable is correctly attached to the RF (Radio Frequency) port located at the back of your Dynex TV. This port is usually labeled ANT/CABLE IN. A loose or damaged connection may lead to the auto scan issue.

2. Verify Antenna Position

Make sure your antenna is not damaged and that it is properly aimed at the broadcast towers in your area. Adjust the antenna’s position if necessary to improve signal reception.

3. Initiating Channel Auto Scan

To start the channel auto scan, follow these steps:

  • a. Press the INPUT button on the universal remote control or use the physical buttons on the TV.
  • b. Select TV as the input source on the INPUT SOURCE window.
  • c. Press the MENU button on the remote control and navigate to the Channel menu.
  • d. Choose Antenna as the TV Source option.
  • e. Scroll down and select Auto Scan, then confirm by selecting Yes.
  • f. Allow the Dynex TV to complete the channel scan.

III. Troubleshooting with HDMI Input

1. Verify HDMI Input Source

If you are using the HDMI inputs on your Dynex TV and it still requests a channel auto scan, chances are you have selected the wrong input source. To resolve this, follow these steps:

  • a. Check the back of your Dynex TV and locate the HDMI port where the satellite receiver or streaming device is plugged in (HDMI 1, HDMI 2, or HDMI 3).
  • b. Press the INPUT button on the universal remote control or use the physical buttons on the TV.
  • c. Choose HDMI as the input source on the INPUT SOURCE window.

2. Avoid Accidental Input Changes

Ensure that you or anyone using the TV does not accidentally change the input source. This might occur if the remote is dropped or settings are adjusted unintentionally.


IV. Rebooting the TV

If your Dynex TV keeps showing a black screen prompting you to run the channel auto scan intermittently, a simple reboot may fix the issue.

  1. Whilethe TV is on, unplug it directly from the wall socket.
  2. If you are using an HDMI streaming device, unplug it from the TV while rebooting.
  3. If you have a satellite receiver, unplug the power cord from the back and wait for at least 20 seconds before plugging it back in.
  4. Allow the TV a minute or two to reboot before turning it back on.
  5. Set the input source correctly using the INPUT button on the remote control.


By following this troubleshooting guide, you should be able to resolve the annoying issue of your Dynex TV constantly requesting a channel auto scan. Whether you are using an antenna or HDMI input, ensuring the correct settings and connections will allow you to enjoy your favorite channels without interruptions. Now that your Dynex TV is up and running smoothly, you can continue to use it for free over-the-air channels or connect it to a streaming device for a more personalized entertainment experience.

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